Java 基于tcp协议实现文件上传

服务端

package lesson02;

import java.io.*;
import java.net.serversocket;
import java.net.socket;

/**
 * 服务端接收文件
 */
public class tcpserverdemo2 {

  public static void main(string[] args) throws ioexception {
    //1、创建服务
    serversocket serversocket = new serversocket(9000);
    //2、监听客户端的连接
    socket socket = serversocket.accept();//阻塞式监听，会一直等待客户端连接
    //3、获取输入流
    inputstream is = socket.getinputstream();

    //4、文件输出
    fileoutputstream fos = new fileoutputstream(new file("receive.jpg"));
    byte[] buffer = new byte[1024];
    int len;
    while ((len = is.read(buffer)) != -1){
      fos.write(buffer, 0, len);
    }

    //通知客户端我接收完毕了
    outputstream os = socket.getoutputstream();
    os.write("我接收完毕了，你可以断开了".getbytes());

    //5、关闭资源
    fos.close();
    is.close();
    socket.close();
    serversocket.close();

  }

}

客户端

package lesson02;

import java.io.*;
import java.net.inetaddress;
import java.net.socket;

/**
 * 客户端上传文件
 */
public class tcpclientdemo2 {

  public static void main(string[] args) throws exception {

    //1、创建一个socket连接
    socket socket = new socket(inetaddress.getbyname("127.0.0.1"), 90000);
    //2、创建一个输出流
    outputstream os = socket.getoutputstream();

    //3、读取文件
    fileinputstream fis = new fileinputstream(new file("toux.jpg"));
    //4、写出文件
    byte[] buffer = new byte[1024];
    int len;
    while ((len = fis.read(buffer)) != -1){
      os.write(buffer, 0, len);
    }

    //通知服务器，我已经结束了
    socket.shutdownoutput(); //我已经传输完了

    //确定服务器接收完毕，才能够断开连接
    inputstream inputstream = socket.getinputstream();
    //sting byte[]
    bytearrayoutputstream baos = new bytearrayoutputstream();

    byte[] buffer2 = new byte[1024];
    int len2;
    while ((len2 = inputstream.read(buffer2)) != -1){
      baos.write(buffer2, 0, len2);
    }

    system.out.println(baos.tostring());

    //5、关闭资源
    fis.close();
    os.close();
    socket.close();

  }

}

以上就是java 基于tcp协议实现文件上传的详细内容，更多关于java 文件上传的资料请关注其它相关文章！